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Spark plug gap for Vortec heads

19K views 7 replies 5 participants last post by  Pennsy86monteSSGuy 
#1 ·
I have a 5.7 90 truck with vortec heads and I'm trying to gap my spark pluges. I bought some plugse and they didn't last long so I did some reading . Come to find out I was buy the wrong pluges. The vortec heads use a longer spark pulgue so now I need info on gaping them.
 
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